x3 Facts
x4 Facts
Arrays & Expressions
Commutative Property
Break it Apart
100

3 x 2

6

100

2 x 4

8

100

An array has 3 rows with 4 in each row. How many objects are in the array?

12

100

Complete the equation:
3 × 4 = 4 × ___

3 × 4 = 4 × 3

100

Complete the equation:
6 × 3 = (5 × 3) + (___ × 3)

6 × 3 = (5 × 3) + (1 × 3)

200

4 x 3

12

200

5 x 4

20

200

 An array has 5 rows of 3. What multiplication equation represents the array?

5 x 3 = 15

200

Complete the equation:
5 × 3 = ___ × 5

5 × 3 = 3 × 5

200

Complete the equation:
7 × 4 = (5 × 4) + (___ × 4)

7 × 4 = (5 × 4) + (2 × 4)

300

6 x 3

18

300

7 x 4

28

300

An array has 4 rows of 6. What repeated-addition expression represents it?

6 + 6 + 6 + 6 = 24

300

Complete the equation:
4 × 7 = 7 × ___

4 × 7 = 7 × 4

300

Solve using break apart:

8 × 3 = (5 × 3) + (3 × 3)
= 15 + ___
= ___

8 × 3 = (5 × 3) + (3 × 3)
= 15 + 9
= 24

400

8 x 3

24

400

8 x 4

32

400

An array has 7 rows of 3. Give TWO expressions that describe the array.

7 × 3 and 3 + 3 + 3 + 3 + 3 + 3 + 3

400

If 8 × 3 = 24, what related multiplication equation can you write using the commutative property?

3 x 8 = 24

400

Which TWO expressions equal 6 × 4?

A. (5 × 4) + (1 × 4)
B. (4 × 4) + (2 × 4)
C. (3 × 4) + (2 × 4)
D. (5 × 3) + (1 × 3)

A. (5 x 4) + (1 x 4)
B. (4 x 4) + (2 x 4)

500

9 x 3

27

500

9 x 4

36

500

An array has 3 rows and 8 columns. Give TWO multiplication expressions that can represent the same array.

3 × 8 and 8 × 3

500

True or false? Explain.
9 × 4 = 4 × 9

True. Both equal 36. The factors switched order, but the product stayed the same.

500

Maya doesn't know 9 × 4, but she knows 5 × 4 and 4 × 4. Use those facts to find 9 × 4.

9 × 4 = (5 × 4) + (4 × 4)
= 20 + 16
= 36

M
e
n
u